package com.example.onlinemusic.config;

import com.example.onlinemusic.tools.Constant;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class LoginInterceptor implements HandlerInterceptor {


    @Override
    public boolean preHandle(HttpServletRequest request,
                             HttpServletResponse response,
                             Object handler) throws Exception {
        HttpSession httpSession = request.getSession(false);

        if (httpSession != null
                && httpSession.getAttribute(Constant.USERINFO_SESSION_KEY) != null) {
            //成功登录状态
            return true;


        }

        return false;
    }
}